Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sulfate-erosion-resistant preservative, sprayed concrete and preparation method of sulfate-erosion-resistant preservative
The invention discloses a sulfate corrosion resistant preservative, sprayed concrete and a preparation method of the sprayed concrete, and belongs to the technical field of building materials. The sulfate erosion resistant preservative comprises the following components in parts by weight: 30-50 parts of a mineral admixture; 10-25 parts of silica fume; 5-15 parts of calcium powder; 5-10 parts of an expanding agent; 0-5 parts of graphene oxide; 0-5 parts of gypsum; and 1-2.5 parts of a dispersant. The invention further provides sprayed concrete which comprises the sulfate erosion resistant preservative. The preparation method of the sprayed concrete comprises the following steps: stirring the cement, the river sand, the gravel and the preservative into a dry mixture, mixing and stirring the water to obtain a mixture, pouring the mixture into a spraying machine, stirring the mixture, and spraying the mixture and the accelerator to a sprayed surface by using an air compressor. The sulfate corrosion resistant preservative improves the sulfate corrosion resistance of sprayed concrete, and the rebound rate of the concrete is reduced to 10% or below.
本发明公开一种抗硫酸盐侵蚀防腐剂、喷射混凝土及其制备方法，属于建筑材料技术领域。一种抗硫酸盐侵蚀防腐剂，按照重量份数计算，包括矿物掺合料30‑50份，硅灰10‑25份；钙粉5‑15份；膨胀剂5‑10份；氧化石墨烯0‑5份；石膏0‑5份；分散剂1‑2.5份。本发明还提出一种喷射混凝土，包括上述抗硫酸盐侵蚀防腐剂。该喷射混凝土的制备方法，包括：先将水泥、河砂、碎石和防腐剂搅拌成干混料，之后将水混合搅拌得到混合物，之后将混合物倒入喷射机中搅拌，之后利用空压机将混合物和速凝剂喷射到受喷面。该抗硫酸盐侵蚀防腐剂提高了喷射混凝土抗硫酸盐侵蚀性能，且使得混凝土的回弹率降低至10％以下。
Sulfate-erosion-resistant preservative, sprayed concrete and preparation method of sulfate-erosion-resistant preservative
The invention discloses a sulfate corrosion resistant preservative, sprayed concrete and a preparation method of the sprayed concrete, and belongs to the technical field of building materials. The sulfate erosion resistant preservative comprises the following components in parts by weight: 30-50 parts of a mineral admixture; 10-25 parts of silica fume; 5-15 parts of calcium powder; 5-10 parts of an expanding agent; 0-5 parts of graphene oxide; 0-5 parts of gypsum; and 1-2.5 parts of a dispersant. The invention further provides sprayed concrete which comprises the sulfate erosion resistant preservative. The preparation method of the sprayed concrete comprises the following steps: stirring the cement, the river sand, the gravel and the preservative into a dry mixture, mixing and stirring the water to obtain a mixture, pouring the mixture into a spraying machine, stirring the mixture, and spraying the mixture and the accelerator to a sprayed surface by using an air compressor. The sulfate corrosion resistant preservative improves the sulfate corrosion resistance of sprayed concrete, and the rebound rate of the concrete is reduced to 10% or below.
本发明公开一种抗硫酸盐侵蚀防腐剂、喷射混凝土及其制备方法，属于建筑材料技术领域。一种抗硫酸盐侵蚀防腐剂，按照重量份数计算，包括矿物掺合料30‑50份，硅灰10‑25份；钙粉5‑15份；膨胀剂5‑10份；氧化石墨烯0‑5份；石膏0‑5份；分散剂1‑2.5份。本发明还提出一种喷射混凝土，包括上述抗硫酸盐侵蚀防腐剂。该喷射混凝土的制备方法，包括：先将水泥、河砂、碎石和防腐剂搅拌成干混料，之后将水混合搅拌得到混合物，之后将混合物倒入喷射机中搅拌，之后利用空压机将混合物和速凝剂喷射到受喷面。该抗硫酸盐侵蚀防腐剂提高了喷射混凝土抗硫酸盐侵蚀性能，且使得混凝土的回弹率降低至10％以下。
Sulfate-erosion-resistant preservative, sprayed concrete and preparation method of sulfate-erosion-resistant preservative
一种抗硫酸盐侵蚀防腐剂、喷射混凝土及其制备方法
CHENG SHUKAI (Autor:in) / CHEN XUYONG (Autor:in) / WU QIAOYUN (Autor:in) / ZHANG DI (Autor:in) / CHENG ZIYANG (Autor:in) / XU XIONG (Autor:in) / WU ZIYANG (Autor:in) / YOU XIAO (Autor:in)
03.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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